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Ibogaine

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https://www.readbyqxmd.com/read/28405636/when-transporters-fail-to-be-transported-how-to-rescue-folding-deficient-slc6-transporters
#1
Sonja Sucic, Ameya Kasture, H M Mazhar Asjad, Carina Kern, Ali El-Kasaby, Michael Freissmuth
The human dopamine transporter (hDAT) belongs to the solute carrier 6 (SLC6) gene family. Point mutations in hDAT (SLC6A3) have been linked to a syndrome of dopamine transporter deficiency or infantile dystonia/parkinsonism. The mutations impair DAT folding, causing retention of variant DATs in the endoplasmic reticulum and subsequently impair transport activity. The folding trajectory of DAT itself is not understood, though many insights have been gained from studies of folding-deficient mutants of the closely related serotonin transporter (SERT); i...
December 30, 2016: Journal of Neurology & Neuromedicine
https://www.readbyqxmd.com/read/28402682/ibogaine-treatment-outcomes-for-opioid-dependence-from-a-twelve-month-follow-up-observational-study
#2
Geoffrey E Noller, Chris M Frampton, Berra Yazar-Klosinski
BACKGROUND: The psychoactive indole alkaloid ibogaine has been associated with encouraging treatment outcomes for opioid dependence. The legal status of ibogaine in New Zealand provides a unique opportunity to evaluate durability of treatment outcomes. OBJECTIVE: To examine longitudinal treatment effects over a 12-month period among individuals receiving legal ibogaine treatment for opioid dependence. METHOD: This observational study measured addiction severity as the primary outcome in 14 participants (50% female) over 12 months post-treatment using the Addiction Severity Index-Lite (ASI-Lite) following a single ibogaine treatment by either of two treatment providers...
April 12, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28266890/examination-of-the-phenomenology-of-the-ibogaine-treatment-experience-role-of-altered-states-of-consciousness-and-psychedelic-experiences
#3
Annamarie Heink, Steve Katsikas, Tiffany Lange-Altman
Psychedelic drugs have historically been used for ritualistic purposes and to help individuals gain insight. Ibogaine, a naturally occurring psychoactive substance, has been reported to have anti-addictive properties that aid in the treatment of substance use disorders. An online survey obtained retrospective data from individuals who used ibogaine in the past. Individuals who used ibogaine tended to describe thematically similar experiences post-treatment. This study adds to the literature by using the 5d-ASC, a psychometrically sound measure of altered states of consciousness (ASCs), to examine the ASCs induced by ibogaine and discusses the demographic characteristics of those who seek ibogaine treatment (N = 27)...
March 7, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28194562/the-iboga-alkaloids
#4
Catherine Lavaud, Georges Massiot
Iboga alkaloids are a particular class of indolomonoterpenes most often characterized by an isoquinuclidine nucleus. Their first occurrence was detected in the roots of Tabernanthe iboga, a sacred plant to the people of Gabon, which made it cult object. Ibogaine is the main representative of this class of alkaloids and its psychoactive properties are well documented. It has been proposed as a drug cessation treatment and has a wide range of activities in targeting opioids, cocaine, and alcohol. The purpose of this chapter is to provide a background on this molecule and related compounds and to update knowledge on the most recent advances made...
2017: Progress in the Chemistry of Organic Natural Products
https://www.readbyqxmd.com/read/27984095/acute-oral-18-methoxycoronaridine-18-mc-decreases-both-alcohol-intake-and-iv-nicotine-self-administration-in-rats
#5
Amir H Rezvani, Marty C Cauley, Susan Slade, Corinne Wells, Stanley Glick, Jed E Rose, Edward D Levin
The ibogaine derivative 18-methoxycoronaridine (18-MC) has been found to decrease self-administration of morphine, nicotine and alcohol in rats after systemic injection. However oral dosing is the preferred route clinically. The current study evaluated the effect of oral 18-MC dosing in rats on alcohol and nicotine self-administration. For the nicotine study, young adult female Sprague-Dawley rats were fitted with IV jugular infusion catheters and trained for nicotine self-administration in 45min. sessions...
October 29, 2016: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/27870477/ascending-single-dose-double-blind-placebo-controlled-safety-study-of-noribogaine-in-opioid-dependent-patients
#6
Paul Glue, Gavin Cape, Donna Tunnicliff, Michelle Lockhart, Fred Lam, Noelyn Hung, C Tak Hung, Sarah Harland, Jane Devane, R S Crockett, John Howes, Borje Darpo, Meijian Zhou, Holger Weis, Lawrence Friedhoff
Ibogaine is a psychoactive substance that may reduce opioid withdrawal symptoms. This was the first clinical trial of noribogaine, ibogaine's active metabolite, in patients established on methadone opioid substitution therapy (OST). In this randomized, double-blind, placebo-controlled single ascending-dose study, we evaluated the safety, tolerability, and pharmacokinetics of noribogaine in 27 patients seeking to discontinue methadone OST who had been switched to morphine during the previous week. Noribogaine doses were 60, 120, or 180 mg (n = 6/dose level) or matching placebo (n = 3/dose level)...
November 2016: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/27734823/-ibogaine-structure-influence-on-human-body-clinical-relevance
#7
REVIEW
Zygmunt Zdrojewicz, Bartłomiej Kuszczak, Natalia Olszak
Ibogaine is a natural chemical compound, which belongs to the indole alkaloid family. It can be naturally found within the root bark of african plant Tabernanthe iboga. Ibogaine plays a significant role among tribal cultures. Ibogaine, in small amount, causes reduction of hunger, thirst and exhaustion. In bigger amount, however, it can cause intensive visions. Other effects include reduction or complete disappearance of absitnence symptoms visible in people addicted to the nicotine, alcohol, methamphetamine, cocaine or opioids, what has been scientifically proven after the tests on animals and small groups of people...
July 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27555326/pharmacological-chaperones-of-the-dopamine-transporter-rescue-dopamine-transporter-deficiency-syndrome-mutations-in-heterologous-cells
#8
Pieter Beerepoot, Vincent M Lam, Ali Salahpour
A number of pathological conditions have been linked to mutations in the dopamine transporter gene, including hereditary dopamine transporter deficiency syndrome (DTDS). DTDS is a rare condition that is caused by autosomal recessive loss-of-function mutations in the dopamine transporter (DAT), which often affects transporter trafficking and folding. We examined the possibility of using pharmacological chaperones of DAT to rescue DTDS mutations. After screening a set of known DAT ligands for their ability to increase DAT surface expression, we found that bupropion and ibogaine increased DAT surface expression, whereas others, including cocaine and methylphenidate, had no effect...
October 14, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27448833/quantification-of-anti-addictive-alkaloids-ibogaine-and-voacangine-in-in-vivo-and-in-vitro-grown-plants-of-two-mexican-tabernaemontana-species
#9
Felix Krengel, Josefina Herrera Santoyo, Teresa de Jesús Olivera Flores, Víctor M Chávez Ávila, Francisco J Pérez Flores, Ricardo Reyes Chilpa
Tabernaemontana alba and Tabernaemontana arborea are Apocynaceae species used in Mexican traditional medicine for which little phytochemical information exists. In this study, preliminary gas chromatography/mass spectrometry analyses of different organs obtained from wild plants of both species identified a total of 10 monoterpenoid indole alkaloids (MIAs) and one simple indole alkaloid, nine of which were reported for the first time in these species. Furthermore, callus cultures were established from T. alba leaf explants and regeneration of whole plants was accomplished via somatic embryogenesis...
December 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/27426011/ibogaine-for-treating-drug-dependence-what-is-a-safe-dose
#10
REVIEW
L J Schep, R J Slaughter, S Galea, D Newcombe
The indole alkaloid ibogaine, present in the root bark of the West African rain forest shrub Tabernanthe iboga, has been adopted in the West as a treatment for drug dependence. Treatment of patients requires large doses of the alkaloid to cause hallucinations, an alleged integral part of the patient's treatment regime. However, case reports and case series continue to describe evidences of ataxia, gastrointestinal distress, ventricular arrhythmias and sudden and unexplained deaths of patients undergoing treatment for drug dependence...
September 1, 2016: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/27342343/death-related-to-consumption-of-rauvolfia-sp-powder-mislabeled-as-tabernanthe-iboga
#11
Thomas Gicquel, Chloé Hugbart, Françoise Le Devehat, Sylvie Lepage, Alain Baert, Renaud Bouvet, Isabelle Morel
Powdered roots of iboga (Tabernanthe iboga) contain ibogaine, an alkaloid that has been used to treat addictions. We report the case of a 30-year-old woman who died after ingesting a powder labeled as Tabernanthe iboga she had bought online. Analysis of the powder revealed the absence of ibogaine but the presence of toxic alkaloids (ajmaline, yohimbine and reserpine) found in Rauvolfia sp. plant species. An original and specific LC-MS/MS method developed to quantify ajmaline, yohimbine and reserpine showed respective concentrations of 109...
September 2016: Forensic Science International
https://www.readbyqxmd.com/read/27244235/ibogaine-and-addiction-in-the-animal-model-a-systematic-review-and-meta-analysis
#12
REVIEW
M Belgers, M Leenaars, J R Homberg, M Ritskes-Hoitinga, A F A Schellekens, C R Hooijmans
Ibogaine is a naturally occurring substance which has been increasingly used in the lay-scene to reduce craving and relapse in patients with substance use disorders (SUDs). Although human clinical trials on the safety and efficacy of ibogaine are lacking, animal studies do support the efficacy of ibogaine. In this systematic review and meta-analysis (MA), we summarise these animal findings, addressing three questions: (1) does ibogaine reduce addictive behaviour in animal models of SUDs?; (2) what are the toxic effects of ibogaine on motor functioning, cerebellum and heart rhythm?; (3) what are neuropharmacological working mechanisms of ibogaine treatment in animal models of SUDs? MA of 27 studies showed that ibogaine reduced drug self-administration, particularly during the first 24 h after administration...
2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27243473/on-the-toxicity-of-ibogaine
#13
COMMENT
Luke Yip, Jou-Fang Deng
No abstract text is available yet for this article.
August 2016: Clinical Toxicology
https://www.readbyqxmd.com/read/27243280/in-reply-on-the-toxicity-of-ibogaine
#14
COMMENT
Tibor M Brunt, Ruud P W Litjens
No abstract text is available yet for this article.
August 2016: Clinical Toxicology
https://www.readbyqxmd.com/read/27192438/remission-of-severe-opioid-use-disorder-with-ibogaine-a-case-report
#15
Laurie Cloutier-Gill, Evan Wood, Trevor Millar, Caroline Ferris, M Eugenia Socias
BACKGROUND: Opioid use disorders (OUD) translate into major health, social, and economic consequences. Opioid agonist medications, which generally require long-term administration, are the mainstay pharmacological treatment of OUD. However, a large proportion of individuals with OUD either refuse or fail to respond to these therapies. Ibogaine, a naturally occurring substance found in the Tabernanthe iboga plant, has shown potential to bring about transformative or spiritual experiences that have reportedly been associated with long-term abstinece...
July 2016: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/27180314/effects-of-low-dose-ibogaine-on-subjective-mood-state-and-psychological-performance
#16
RANDOMIZED CONTROLLED TRIAL
Bridget Forsyth, Liana Machado, Tim Jowett, Hannah Jakobi, Kira Garbe, Helen Winter, Paul Glue
ETHNOPHARMACOLOGICAL RELEVANCE: Root bark from Tabernanthe iboga has been used traditionally in West Africa as a psychoactive substance in religious rituals. In smaller doses it is reported anecdotally to have stimulant properties. AIM OF THE STUDY: To evaluate the influence of a single 20mg ibogaine dose on psychological variables reflecting subjective mood state and a range of cognitive functions. MATERIALS AND METHODS: 21 healthy male volunteers received single 20mg doses of ibogaine after 6 days pretreatment with double-blind paroxetine or placebo...
August 2, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27160167/bioinspired-collective-syntheses-of-iboga-type-indole-alkaloids
#17
Gaoyuan Zhao, Xingang Xie, Haiyu Sun, Ziyun Yuan, Zhuliang Zhong, Shouchu Tang, Xuegong She
We present the application of a bioinspired collective synthesis strategy in the total syntheses of seven iboga-type indole alkaloids: (±)-tabertinggine, (±)-ibogamine, (±)-ibogaine, (±)-ibogaine hydroxyindolenine, (±)-3-oxoibogaine hydroxyindolenine, (±)-iboluteine, and (±)-ervaoffines D. In particular, tabertinggine and its congeners serve as iboga precursors for the subsequent biomimetic transformations into other iboga-type alkaloids.
May 20, 2016: Organic Letters
https://www.readbyqxmd.com/read/27141291/ibogaine-associated-cardiac-arrest-and-death-case-report-and-review-of-the-literature
#18
REVIEW
Jessica A Meisner, Susan R Wilcox, Jeremy B Richards
A naturally occurring hallucinogenic plant alkaloid, ibogaine has been used as an adjuvant for opiate withdrawal for the past 50 years. In the setting of an escalating nationwide opiate epidemic, use of substances such as ibogaine may also increase. Therefore, familiarity with the mechanisms and potential adverse effects of ibogaine is important for clinicians. We present the case report of a man whose use of ibogaine resulted in cardiac arrest and death, complemented by a review of the literature regarding ibogaine's clinical effects...
April 2016: Therapeutic Advances in Psychopharmacology
https://www.readbyqxmd.com/read/27140629/control-of-serotonin-transporter-phosphorylation-by-conformational-state
#19
Yuan-Wei Zhang, Benjamin E Turk, Gary Rudnick
Serotonin transporter (SERT) is responsible for reuptake and recycling of 5-hydroxytryptamine (5-HT; serotonin) after its exocytotic release during neurotransmission. Mutations in human SERT are associated with psychiatric disorders and autism. Some of these mutations affect the regulation of SERT activity by cGMP-dependent phosphorylation. Here we provide direct evidence that this phosphorylation occurs at Thr276, predicted to lie near the cytoplasmic end of transmembrane helix 5 (TM5). Using membranes from HeLa cells expressing SERT and intact rat basophilic leukemia cells, we show that agents such as Na(+) and cocaine that stabilize outward-open conformations of SERT decreased phosphorylation and agents that stabilize inward-open conformations (e...
May 17, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27059333/18-methoxycoronaridine-acts-in-the-medial-habenula-to-attenuate-behavioral-and-neurochemical-sensitization-to-nicotine
#20
Branden L Eggan, Sarah E McCallum
Systemic 18-methoxycoronaridine, an alpha3beta4 nicotinic antagonist, slows the rate of induction of behavioral sensitization to nicotine (Glick et al., 1996; 2011). The primary mechanism of action of 18-MC is believed to be the inhibition of α3β4 nicotinic acetylcholine receptors which are densely expressed in the medial habenula and interpeduncular nucleus (Pace et al., 2004; Glick et al., 2012). Recently, these habenular nicotinic receptors and their multiple roles in nicotine aversion and withdrawal have been increasingly emphasized (Antolin-Fontes et al...
July 1, 2016: Behavioural Brain Research
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